Finding the Fourth Proportional to 52,486.30, 72,409.28 and 30,967.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,486.30 : 72,409.28 = 30,967.50 : x
2. Step 2: Convert to fraction form
   52,486.30/72,409.28 = 30,967.50/x
3. Step 3: Cross multiply
   52,486.30x = 72,409.28 × 30,967.50
4. Step 4: Simplify right side
   52,486.30x = 2,242,334,378.40
5. Step 5: Solve for x
   x = 2,242,334,378.40/52,486.30
6. Step 6: Final answer
   x = 42,722.28